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  1. Lustre
  2. LU-15456

deadlock in ll_new_node() when running racer

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Details

    • Bug
    • Status: Resolved
    • Blocker
    • Resolution: Fixed
    • Lustre 2.14.0, Lustre 2.15.0
    • Lustre 2.15.0
    • None
    • 3
    • 9223372036854775807

    Description

      ll_new_node() will call ll_dir_getstripe() to fetch parent default LMV if md_create() returns -EREMOTE, but it doesn't call ll_finish_md_op_data() to unlock lli_lsm_sem before ll_dir_getstripe(), which will cause deadlock because the ll_dir_getstripe() will lock lli_lsm_sem again.

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            laisiyao Lai Siyao
            laisiyao Lai Siyao
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            Dates

              Created:
              Updated:
              Resolved: